摘要:
Esters of 1-oxo-2-diazo-naphthalene sulfonic acid wherein the sulfonic acid group is at either the 4 or the 5 position of a hydroxymethyl-tricyclo [5.2.1.0.sup.2,6 ] decane wherein the hydroxy group is either at the 3 or 4 position and useful as sensitizers for positive resists, particularly relatively thick resists at 365 nm.
摘要:
Positive resists are formed from a soluble phenolic resin and a sensitizer which is a diester of a 1-oxo-2-diazonaphthalene sulfonic acid and of an unsymmetrical primary or secondary aliphatic diol which is a mixture of geometric and diastereoisomers.
摘要:
A lithographic resin for use with deep ultraviolet radiation comprises a weakly acidic resin and an alpha phosphoryl substituted diazo carbonyl compound as a sensitizer.
摘要:
A negative tone resist image is achieved by (1) coating a substrate with a film of a polymer containing a masked, reactive functionality; (2) imagewise exposing the film to radiation in a fashion such that the masked functionality is liberated; (3) contacting the film with an organometallic reagent; (4) developing the relief image by the oxygen plasma etching.
摘要:
A process for making an image oxygen-reactive ion etch barrier using a polysilane that is resistant to resistive ion etching and is also a positive acting resist.
摘要:
A process for fabricating sliders where the sliders are held in place during processing by a solid matrix material is described. A thin coating of a release-layer material is applied on the sliders before encapsulation in the matrix material. The release-layer material is polyvinyl alcohol and more preferably high molecular weight polyvinyl alcohol which is highly hydrolyzed. Use of the release-layer of the invention maintains the process resistance while providing the advantage of allowing easier removal of the matrix material after it is no longer needed. The release-layer can be applied to encapsulant materials including epoxies, acrylates, polyimides, silsesquioxanes and others. After the selected fabrication process such as the formation of air-bearing features an appropriate solvent is applied to soften the polyvinyl alcohol film and allow clean debonding of the sliders.
摘要:
A slider assembly is provided comprising a plurality of sliders bonded by a debondable solid encapsulant comprised of different first and second polymers The solid encapsulant is comprised of a polymer prepared by polymerizing an encapsulant fluid comprising a homogeneous mixture of first and second constituents. The first constituent is comprised of a first monomer suitable for in situ polymerization to form the first polymer. The second constituent is comprised of the second polymer or a second monomer suitable for in situ polymerization to form the second polymer. The first constituent does not substantially react with the second constituent. Each slider has a surface that is free from the encapsulant. The encapsulant-free surfaces are coplanar to each other. Also provided are methods for forming the assembly and methods for patterning a slider surface using the encapsulant.
摘要:
The invention relates generally to the bonding of one or more sliders in styrene and butadiene polymers. More particularly, the invention relates to planarized slider assemblies formed by using debondable solid encapsulants comprised of styrene and butadiene polymers. The invention also relates to methods that use such encapsulants in conjunction with resists to produce magnetic head sliders having patterned air-bearing surfaces.
摘要:
The invention relates generally to the bonding of one or more sliders in styrene and acrylate polymers. More particularly, the invention relates to planarized slider assemblies formed by using debondable solid encapsulants comprised of styrene and acrylate polymers. The invention also relates to methods that use such encapsulants in conjunction with resists to produce magnetic head sliders having patterned air-bearing surfaces.